In Israel, signs are in Hebrew, Arabic and English. And where I live, also in Russian. But people actually speak those languages, as well as French, Amharic and Yiddish. So they kept it down to three. The only language that was aggressively pushed was Hebrew, revived from being a purely liturgical and scholarly language to colloquial. The only language that was aggressively suppressed was Yiddish, but it’s still around, so that failed.
Lately, Eastern Christians have taken a hankering to speaking Aramaic again, since the Palestinian Authority’s behavior in Bethlehem and Beit Jaleh has thoroughly alienated them from continuing to identify as “Palestinian Christians,” so a lot of them are dropping Arabic as a lingua franca in favor of Aramaic.
I’m for whatever people actually want to speak.
In the eastern third of The Ukraine, that was Russian, and suppressing the Russian language after the U.S. sponsored Maidan Coup (not taught in schools, not used in any govt buildings/official proceedings) is a big part of the reason for the current war. It formalized that Russians were 2nd-class citizens in Ukraine, from east to west and north to south.
If you have to make up a new alphabet out of whole cloth, instead of phoneticizing one of the in-use alphabets, betrays the “divide and conquer” strategy.
Good grief, the English conquered Ireland and supplanted Irish with English, but Irish is so hard to learn, even the Irish stick with English. And Roman letters.